Book Image

Designing Microservices Platforms with NATS

By : Chanaka Fernando
5 (1)
Book Image

Designing Microservices Platforms with NATS

5 (1)
By: Chanaka Fernando

Overview of this book

Building a scalable microservices platform that caters to business demands is critical to the success of that platform. In a microservices architecture, inter-service communication becomes a bottleneck when the platform scales. This book provides a reference architecture along with a practical example of how to implement it for building microservices-based platforms with NATS as the messaging backbone for inter-service communication. In Designing Microservices Platforms with NATS, you’ll learn how to build a scalable and manageable microservices platform with NATS. The book starts by introducing concepts relating to microservices architecture, inter-service communication, messaging backbones, and the basics of NATS messaging. You’ll be introduced to a reference architecture that uses these concepts to build a scalable microservices platform and guided through its implementation. Later, the book touches on important aspects of platform securing and monitoring with the help of the reference implementation. Finally, the book concludes with a chapter on best practices to follow when integrating with existing platforms and the future direction of microservices architecture and NATS messaging as a whole. By the end of this microservices book, you’ll have developed the skills to design and implement microservices platforms with NATS.
Table of Contents (15 chapters)
1
Section 1: The Basics of Microservices Architecture and NATS
5
Section 2: Building Microservices with NATS
11
Section 3: Best Practices and Future Developments

Understanding the use case of a hospital OPD

In a typical healthcare service provider institution such as a hospital, there is a dedicated department to serve the patients that need treatment for short-term illnesses that do not require a bed or need to be admitted to the hospital immediately. This department is called an OPD. An OPD is an important part of the hospital's operations and provides a buffer between the incoming patients and the wards that treat patients for longer periods. We can identify a certain number of main tasks that are executed within the OPD. We discussed these tasks in Chapter 1, Introduction to the Microservice Architecture. These tasks include the following:

  • Patient registration: This is where new patients are registered with the hospital so that they can be provided with the necessary medical treatment.
  • Patient inspection: The immediate next step after registering is the patient being inspected by experienced physicians to identify the...